/**
 * The MIT License
 * 
 * Copyright (c) 2008 Per Otto Bergum Christensen
 * 
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 * 
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 * 
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */

package bdddoc4j.core.util;

import java.util.ArrayList;
import java.util.List;

import org.apache.commons.lang.StringUtils;

import bdddoc4j.core.domain.Scenario;

/**
 * Util-methods for getting data from java source code.
 */
public class JavaCodeUtil {

	private JavaCodeUtil() {
	}

	public static String javaBlockAfter(String javaSourceCode, String token) {
		String cutCode = StringUtils.substringAfter(javaSourceCode, token);
		return StringUtils.substringBetween(cutCode, "{", "}").trim();
	}

	public static List<Scenario.Part> getGivenWhenThenMethods(String javaMethodContent) {
		List<Scenario.Part> result = new ArrayList<Scenario.Part>();

		String javaTmp = javaMethodContent;

		for (int keywordIndex = 0; keywordIndex < Scenario.KEYWORD_COUNT; keywordIndex++) {

			boolean found = true;
			while (found) {
				int keywordStart = Scenario.Pattern.indexOfScenarioKeyword(javaTmp, keywordIndex);
				found = -1 < keywordStart;
				if (found) {
					javaTmp = javaTmp.substring(keywordStart);
					String behaviourByKeyword = StringUtils.substringBefore(javaTmp, "(");
					result.add(new Scenario.Part(behaviourByKeyword));
					javaTmp = javaTmp.substring(behaviourByKeyword.length());
				}
			}
		}

		return result;
	}
}
